Flush valve



March 1l, 1930. s. P. ENRIGHT FLUSH VALVE Filed Feb. 20, 1929 2Sheets-Shet 1 day; A`:

l* March 11, 1930. s. P. ENRIGHT FLUSH VALVE Filed Feb. 2o, 1929 2Sheets-sheet 2 /J /6 /4 y y /7 6/ 63 /`9 29 q 2 23 24"- 64 ff'f/ f6''*"A `T`\ 602038 fj# v I v 3....... INVENz/'oli 6465 2/ 60 Sl'eawn/ffzrzl'y Patented Mar. 11, 1930 STEPHEN P. ENRIGHT, 0F PHILADELPHIA,VPENNSYLVANIA FLnsH VALVE Application med February 20, 1929. seriai No.341,383.

My invention relates to new and useful improvements in a flush valve andmore particularly to improvements upon such a device illustrated in mypatent application iiled June 7, 1928, under Serial Number 283,578, andhas for one of its objects to simplify the construction and so arrangethe several elements relative to each other that a greateroperatingeiliciency is obtained. L

Another object yof the invention is to providea flush valve particularlyadapted for operation in connection with water under variable pressures.n

A further object of the invention is to so water assists in opening thevalve to its full capacity. f

A still further object of the invention is to provide means for holdingAthe valve in an open position after once being fully opened, until suchtime as the water pressure is reduced, when the valve will be releasedand will close by gravity.

Another object of the invention is to provide la sliding valve member ofunique construction.

With these ends in view, this invention consists inthe detailsofconstruction and combination of elements'hereinafter set forth and thenspecifically designated by the claims. Y In order that those skilled inthe art to Ywhich this invention* appertains may understand how to makeand use the same, I will describe its construction in detail, referringnumerals to the accompanying drawings forming a part of thisapplication, in

which:-

Fig. 1, is a side elevation of a flush valve constructed in accordancewith my improvement showing the handle in an inoperative position andillustrating in dotted lines the position which it may assume to movethe valve member into a full open position.

Fig. 2, is an end view thereof with the handle broken away.

Fig. 3, is a bottom plan view with aportion of the handle broken off.

.Figg 4, is a long gitudinalV sectional view with some of the partsvshown in elevation,

Fig. 7. construct the parts that the initial flow of and the valvemember illustrated 'partly in section and shown in an open Fig. 5, is alongitudinal positlon. sectional view elevation.

Fig. 6, is a top plan view of the holding member.

Fig. 7, is a top plan view of the valve member per se.

Fig. 8, is a bottom plan view thereof. Fig. 9, is a 'section 'on theline 9-9 of Fig. 7.

Fig. 10,v is a section on the line 10-10 of In carrying out theinvention as herein embodied, 11 represents a union nipple which isadapted to `be threaded or otherwise connected with the outlet pipe of aflush tank and said nipple includes an eccentric body 12 having thereina passageway 13 for the water flowing into the casing 14 which isconnected with the union nipple by means of the union nut 15. Theeccentricity of the body of this nipple provides for slight adjustmentsto facilitate tiling the wall through which the body 12 projects as willvbe readily understood.

The valve casing includes a mouth 16 providing a chamber y17 withinwhich is located the valve seat 18 and also ter of which is below a body19, the centhe center of its mouth and said body is adapted to beconnected in any suitable manner with the water inlet of a flush bowl.

Within the body adjacent the valve seat are formed guideways 20, one onveach side of the inner surface of the body, in which are slidablymounted the trunnions 21 proface 28,

all held in place by a nut 29 having threaded engagement with the stud24.

Projecting from the face site the stud are two of the head opposides 30having a genlso eral rearward and downward formation and these sidescarry lthe trunnions 21. The upper edges of the sides adjacent the heador between the head and trunnions carry a transversearcuate wall 31which I term a baffle plate and across the lower edges of said sides isa bridge 32 while a small bar 33 extends from the bridge .to the head23. About the lower portion of thehead between the lower edges of thesides and projecting rearwardly from said head is a small ledge 34,which as will be hereafter more fully explained assists in guiding acurrent of water to the baffle plate and also assists in lifting thehead of the valve member. e

From the sides 30, to the rear of the bridge extend the spaced parallelrearwardlyprojecting legs 35 strengthened by ribs 36, and said legsterminate in a cross piece 37.. f

The rear edge of the bridge 32 is adapted to be engaged by a lug 38 uponthe spindle 39 which is suitably journalled in the sides of the off-set40, said sides being here shown as a plug and nut,and said spindlecarries f an operating handle 41. Y f

The cross piece 37 ofthe valve member, Ywhen the latter isin an openposition, is adapted to engage the'shoulder y42 of the catch 43pivotally mounted by means of trunnions 44 setting in bearings 45. rEheshoulder 42 is slightly beveled and the rear Aportion .Y of the catch orthat part on the side of the trunnion centers opposite said shoulder 42is weighted, thus tending to tip theY rear end of the catch downward, asshowninFig. 5

to assist in releasing the valve member, as

will be presently explained.

The operation-of the device is as follows As the operating handle 41 israised from its horizontal position shown in elevation inf Fig. 1 towarda vertical'positiomillustrated in dotted lines in saidFig. 1, the lug 38`on the spindle 39 through its coact'ion with the Vrear Vedge of thebridge32 moves the valve.'

member 22 forwardly and since the trunnions 21 are slidably mounted inthe inclined guideways 20, said valve member will be elevated duringsaid forward movement and .since the flow of water through the deviceforces the forward end ofthe valve member upward, therear portion ofsaid valve member will be slightly tilted. As soon as the initialunseating lmovement has been given to the valve member, the water willbegin to flow through the valve casing below the head of the valvemember and the force of thisflow of water impinging against the ledge 34and then against the bafie plate 31 will assistin lifting the forwardportion or head ofthe valve member. 1` v At the same time the action ofthe water on the enclosed face 28. of the disc 27 vtends to wedge saiddisc upward, thus assisting in elevating the head of tlievalvemember.y

When-the valve member is open as shown in the yiiow of water. Y It mightbe well to state at this time that Vdue to the downwardly lbeveled face28, the

Fig. 4, the cross piece 37 will engage the latch 43 and elevate itsweighted or outer end until the line of force on the valve membenzandtransmitted through said valve member is w f they weighted end of thelatch 43 will drop down, the crosspiece 37 of the valve member` will bereleasedxfrom the shoulder42 and said vv'alvememberwill move downwardlyv and rearwardly dueto gravity andk because of the inclinedarrangement'of the guide ways 20. This action *will cause. the valve"VV18i andshut off plug' 25 to engage the seat water willbe directedtoward-the -lower `por- Y tion of the head of .the valve memberand theimpinging of the water against Vthe ledge 46 and the suctionaction'created in the pas-V sage ofthe water over the edge thereof willi tend to force the valve member kforward as well as upward, while theinitial flow of water will-'pass through Vthe valve .casing at thebottom thereof so as to'readily continue the lifting. action on thevalve-member as' above set forth. Y Y

Of course Ido not wish' tobe vlimited Vto the exact details ofVconstruction as herein shown, as these may be varied within'the Vlimitsofthe appended claims` withoutide-y parting from the spirit ofmy'invention.

VIalaving,thus fully described my invention,

what I claim as new and useful Vis f e 1. 'A flush valve comprisingV acasing hav- `ing avalveseat therein, a valve member `including askeleton body, a head anda cross2 piece, trunnions carried by the bodyfor slid-y ably mounting the samein vinclined guideways in the casing,means to temporarily latch the valve memberyin an open position and avalve plug on the head for coaction withlthe` seat.

2. rl'he structure set forth in claim 1 in` combination with a discmounted upon the head of thevalve member and; having a downwardly andinwardly Ainclined forward face. 3. A' flush valve comprising a casinghavmg the main body portion off-set relative to the entrance end,guidways in said body, a valve seat between the mainbody portion and itsentrance, a valve member, means carried thereby for coaction'with'thevalve seatto- Y* `control the flow of water 4through thecasing,trunnions vcarried by said-valve member andslidably mounted in theguideways and a latch for coaction with the valve member to hold thelatter in an elevated position when the two are in engagement andpressure is applied to said valve member, said valve member beingautomatically disengageable from the holding means when the pressure onsaid valve member is relieved.

4. rl`he structure set forth in claim 3 in combination with means todirect an initial stream of water toward the under side of the valvemember, and means carried by said valve member to wedge an end thereofupwardly due to pressure of water thereagainst.

5. A flush valve including a casing, a valve seat adjacent the forwardend of said casing, guideways within the casing to the rear of the valveseat and inclined upwardly and forwardly, a valve member including ahead, a stud projected from said head, sides extending from the rear ofsaid head and fashioned to project downwardly and rearwardly, a curvedbathe plate extending between the upper edges of said sides contiguousthe head, a curved latch extending between the lower edges of said sidescontiguous the head, trunnions extending from the sides for registrationwith the guide ways, a bridge extending between the lower edges of thesides to the rear of the trunnions, a bar connecting said bridge and thehead, legs projecting rearwardly from the sides, a cross bar at the rearends of said legs, a spindle rotatably mounted in the casing, a lugthereon for coaction with the bridge to move the valve member forward, alatch, trunnions projecting from said latch, bearings in which saidtrunnions are journalled, the rear end of said latch being heavier thanthe forward end so that said rear end is normally depressed, a shoulderat the forward end of said latch for coaction with the cross bar of thevalve member, a valve plug mounted on the stud of the valve member forcoaction with the valve seat, a disc also mounted on said st-ud andhaving its forward face inclined inwardly and downwardly whereby actionof water under pressure will wedge the head end of the Valve memberupward and water passing through the casing and impinging on the ledgeand baille plate will also lift the head end of the valve member andcause the cross bar to depress the forward end of the latch and engagethe shoulder thereof, but when the pressure on the valve member isrelieved, the heavier end of the latch will fall and release the crossbar from said latch and thereafter the valve member will move by gravityuntil the'valve plug engages the seat, and means to direct the initialflow of water to the under side of the valve member.

6. In a flush valve, a casing having a valve seat therein, a valvemember slidably pivoted in said casing and adapted to be tilted, aportion of said member extending on either side axis of the pivot, meansfor latching one end yof said member to hold the other end in openSTEPHEN I?. ENRIGHT.

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